Customer support is a joke! 

Opened a ticket because my rig is stuck at Rented - Ends in a few moments for two hours and just got an "stupid-auto" aswer:

Hello,

When a rig is stuck in the “Rented - ends in a few moments” state, that actually means that your rig is no longer connected to Betarigs.
Indeed, Betarigs needs the rig to be online for the end of the rental to be declared.
So simply connect back your rig to Betarigs, and the “Rented - ends in a few moments” label will disappear within a minute or two.

Cheers!
Nyd

You really need to improve your support!!!